Yes, I do have a Bluetooth keyboard and mouse already, but was using an old USB mouse/keyboard to test the old OTG adapter I had on hand, as I knew that old USB mouse/keyboard pair worked with the Display Dock). I was looking at options to use some of the other USB peripherals I've used with the Display Dock while on the go, such as USB drives and an Xbox One controller (since the Display Dock needs to be plugged in to work).

Oh, that USB hub was on sale for black Friday for $20 (Canadian, which is roughly $15 USD), but I noticed it is back to almost full price now, which I agree is pretty steep!

By the way, I was reading a bit more about USB Type C and noticed that a couple places on Windows Central, people referred to a series of reviews on Amazon by Benson Leung. In response to someone asking about Micro B to Type C adapters for OTG, he indicated that "... OTG adapters like the one you are thinking about are not spec compliant ..."

I also noticed later that the adapter I have does have a fine print note that it does not support USB On-The-Go.

I didn't realize how different of a beast USB Type C is! Even looking at some of Benson's reviews, it is clear that not all USB Type C cables are made equal, and many being sold are out of specification.